Epigenetic and Neuronal Activity Markers Suggest the Recruitment of the Prefrontal Cortex and Hippocampus in the Three-Hit Model of Depression in Male PACAP Heterozygous Mice
Depression and its increasing prevalence challenge patients, the healthcare system, and the economy. We recently created a mouse model based on the three-hit concept of depression. As genetic predisposition (first hit), we applied pituitary adenylate cyclase-activating polypeptide heterozygous mice...
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2022-10-01
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| author | Tamás Gaszner József Farkas Dániel Kun Balázs Ujvári Nóra Füredi László Ákos Kovács Hitoshi Hashimoto Dóra Reglődi Viktória Kormos Balázs Gaszner |
| author_facet | Tamás Gaszner József Farkas Dániel Kun Balázs Ujvári Nóra Füredi László Ákos Kovács Hitoshi Hashimoto Dóra Reglődi Viktória Kormos Balázs Gaszner |
| author_sort | Tamás Gaszner |
| collection | DOAJ |
| description | Depression and its increasing prevalence challenge patients, the healthcare system, and the economy. We recently created a mouse model based on the three-hit concept of depression. As genetic predisposition (first hit), we applied pituitary adenylate cyclase-activating polypeptide heterozygous mice on CD1 background. Maternal deprivation modeled the epigenetic factor (second hit), and the chronic variable mild stress was the environmental factor (third hit). Fluoxetine treatment was applied to test the predictive validity of our model. We aimed to examine the dynamics of the epigenetic marker acetyl-lysine 9 H3 histone (H3K9ac) and the neuronal activity marker FOSB in the prefrontal cortex (PFC) and hippocampus. Fluoxetine decreased H3K9ac in PFC in non-deprived animals, but a history of maternal deprivation abolished the effect of stress and SSRI treatment on H3K9ac immunoreactivity. In the hippocampus, stress decreased, while SSRI increased H3K9ac immunosignal, unlike in the deprived mice, where the opposite effect was detected. FOSB in stress was stimulated by fluoxetine in the PFC, while it was inhibited in the hippocampus. The FOSB immunoreactivity was almost completely abolished in the hippocampus of the deprived mice. This study showed that FOSB and H3K9ac were modulated in a territory-specific manner by early life adversities and later life stress interacting with the effect of fluoxetine therapy supporting the reliability of our model. |
| first_indexed | 2024-03-09T21:38:19Z |
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| issn | 1661-6596 1422-0067 |
| language | English |
| last_indexed | 2024-03-09T21:38:19Z |
| publishDate | 2022-10-01 |
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| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-897abd3fde9247b98fce23937ab8876a2023-11-23T20:38:26ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672022-10-0123191173910.3390/ijms231911739Epigenetic and Neuronal Activity Markers Suggest the Recruitment of the Prefrontal Cortex and Hippocampus in the Three-Hit Model of Depression in Male PACAP Heterozygous MiceTamás Gaszner0József Farkas1Dániel Kun2Balázs Ujvári3Nóra Füredi4László Ákos Kovács5Hitoshi Hashimoto6Dóra Reglődi7Viktória Kormos8Balázs Gaszner9Department of Anatomy, Medical School, University of Pécs, H-7624 Pécs, HungaryDepartment of Anatomy, Medical School, University of Pécs, H-7624 Pécs, HungaryDepartment of Anatomy, Medical School, University of Pécs, H-7624 Pécs, HungaryDepartment of Anatomy, Medical School, University of Pécs, H-7624 Pécs, HungaryDepartment of Anatomy, Medical School, University of Pécs, H-7624 Pécs, HungaryDepartment of Anatomy, Medical School, University of Pécs, H-7624 Pécs, HungaryLaboratory of Molecular Neuropharmacology, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita 565-0871, Osaka, JapanDepartment of Anatomy, Medical School, University of Pécs, H-7624 Pécs, HungaryDepartment of Pharmacology and Pharmacotherapy, University of Pécs, H-7624 Pécs, HungaryDepartment of Anatomy, Medical School, University of Pécs, H-7624 Pécs, HungaryDepression and its increasing prevalence challenge patients, the healthcare system, and the economy. We recently created a mouse model based on the three-hit concept of depression. As genetic predisposition (first hit), we applied pituitary adenylate cyclase-activating polypeptide heterozygous mice on CD1 background. Maternal deprivation modeled the epigenetic factor (second hit), and the chronic variable mild stress was the environmental factor (third hit). Fluoxetine treatment was applied to test the predictive validity of our model. We aimed to examine the dynamics of the epigenetic marker acetyl-lysine 9 H3 histone (H3K9ac) and the neuronal activity marker FOSB in the prefrontal cortex (PFC) and hippocampus. Fluoxetine decreased H3K9ac in PFC in non-deprived animals, but a history of maternal deprivation abolished the effect of stress and SSRI treatment on H3K9ac immunoreactivity. In the hippocampus, stress decreased, while SSRI increased H3K9ac immunosignal, unlike in the deprived mice, where the opposite effect was detected. FOSB in stress was stimulated by fluoxetine in the PFC, while it was inhibited in the hippocampus. The FOSB immunoreactivity was almost completely abolished in the hippocampus of the deprived mice. This study showed that FOSB and H3K9ac were modulated in a territory-specific manner by early life adversities and later life stress interacting with the effect of fluoxetine therapy supporting the reliability of our model.https://www.mdpi.com/1422-0067/23/19/11739histone acetylationH3K9acFOSBchronic stressmaternal deprivation |
| spellingShingle | Tamás Gaszner József Farkas Dániel Kun Balázs Ujvári Nóra Füredi László Ákos Kovács Hitoshi Hashimoto Dóra Reglődi Viktória Kormos Balázs Gaszner Epigenetic and Neuronal Activity Markers Suggest the Recruitment of the Prefrontal Cortex and Hippocampus in the Three-Hit Model of Depression in Male PACAP Heterozygous Mice International Journal of Molecular Sciences histone acetylation H3K9ac FOSB chronic stress maternal deprivation |
| title | Epigenetic and Neuronal Activity Markers Suggest the Recruitment of the Prefrontal Cortex and Hippocampus in the Three-Hit Model of Depression in Male PACAP Heterozygous Mice |
| title_full | Epigenetic and Neuronal Activity Markers Suggest the Recruitment of the Prefrontal Cortex and Hippocampus in the Three-Hit Model of Depression in Male PACAP Heterozygous Mice |
| title_fullStr | Epigenetic and Neuronal Activity Markers Suggest the Recruitment of the Prefrontal Cortex and Hippocampus in the Three-Hit Model of Depression in Male PACAP Heterozygous Mice |
| title_full_unstemmed | Epigenetic and Neuronal Activity Markers Suggest the Recruitment of the Prefrontal Cortex and Hippocampus in the Three-Hit Model of Depression in Male PACAP Heterozygous Mice |
| title_short | Epigenetic and Neuronal Activity Markers Suggest the Recruitment of the Prefrontal Cortex and Hippocampus in the Three-Hit Model of Depression in Male PACAP Heterozygous Mice |
| title_sort | epigenetic and neuronal activity markers suggest the recruitment of the prefrontal cortex and hippocampus in the three hit model of depression in male pacap heterozygous mice |
| topic | histone acetylation H3K9ac FOSB chronic stress maternal deprivation |
| url | https://www.mdpi.com/1422-0067/23/19/11739 |
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